Home / 91,983.20-137,974.80-47,623.55

Finding the Fourth Proportional to 91,983.20, 137,974.80 and 47,623.55

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Solution

The fourth proportional to 91,983.20, 137,974.80 and 47,623.55 is: 71,435.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,983.20 : 137,974.80 = 47,623.55 : x
  2. Step 2: Convert to fraction form
    91,983.20/137,974.80 = 47,623.55/x
  3. Step 3: Cross multiply
    91,983.20x = 137,974.80 × 47,623.55
  4. Step 4: Simplify right side
    91,983.20x = 6,570,849,786.54
  5. Step 5: Solve for x
    x = 6,570,849,786.54/91,983.20
  6. Step 6: Final answer
    x = 71,435.33

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.